<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>TodoList</title>
    <script src="./vue.js"></script>
</head>
<body>

<div id="root">
    <div>
        <input type="text" v-model="todoValue"/>
        <button @click="handleBtnClick">提交</button>
    </div>
    <ul>
        <todo-item :content="item"
                   :index="index"
                   v-for="(item, index) in list"
                   @delete="handleItemDelete">
        </todo-item>


    </ul>
</div>

<script>

    var TodoItem = {
        props: ['content', 'index'],
        template: "<li @click='handleItemClick'>{{content}}</li>",
        methods: {
            handleItemClick: function () {
                this.$emit("delete", this.index);
            }
        }
    }

    var app = new Vue({
        el: "#root",
        components: {
            TodoItem: TodoItem
        },
        data: {
            todoValue: "",
            list: []
        },
        methods: {
            handleBtnClick: function () {
                this.list.push(this.todoValue)
                this.todoValue = ""
            },
            handleItemDelete: function (index) {
                this.list.splice(组件间的传值, 1)
            }
        }
    })
</script>
</body>
</html>